胸部多层螺旋CT小剂量分段扫描的诊断与防护价值  

Diagnosis and Radioprotection with Minor Dose Staged Scanning in Chest Disease by Multislice Spiral CT

作　　者：王洪生[1] 王兴卉 王风云[1] 杨少平[1] 蔡磊[1] 陈明华[1] 

机构地区：[1]浙江省杭州市萧山区中医院,萧山311201 [2]浙江省杭州市萧山区第五人民医院

出　　处：《浙江中医学院学报》2005年第6期21-22,共2页Journal of Zhejiang College of Traditional Chinese Medicine

摘　　要：目的探讨小剂量分段多层螺旋CT扫描技术在胸部常规检查中的诊断与防护价值。方法对高度怀疑胸部病变者188例行常规及小剂量分段胸部多层螺旋CT扫描,观察比较其对病变的定量及定性诊断的差异和辐射剂量的差异。结果与常规剂量多层螺旋CT扫描相比,多层螺旋CT小剂量分段扫描对病变的定性与定量诊断无明显差异,但是辐射剂量有大幅度下降。结论多层螺旋CT小剂量分段扫描技术适用于胸部病变的常规检查,有利于患者胸部的辐射防护。Objective.To evaluate minor dose staged MSCT scanning in detecting chest disease and its significance in radioprotection. Methods：Conventional and minor staged dose MSCT scanning was performed in 188 cases of adult with suspected chest disease. The accuracy in the lesion detection and characteristic diagnosis was compared and dose difference was analyzed. Results.There were no significant differences between two ways of MSCT scans in lesion detection and characteristicdiagnosis. The radiation dose was greatly decreased in minor dose staged MSCT scanning. Conclusion：Minor dose staged MSCT scanning is suitable for examining the thoracic disease of conventional and it plays an important role in radioprotection.

关 键 词：体层摄影术 X线计算机 胸部 辐射防护 

分 类 号：R563[医药卫生—呼吸系统] R693.4[医药卫生—内科学]